I taught conversational English to the Japanese for some years. Once I asked my students if Mochi, a glutinous white rice cake, was good for a person. Was it a healthy food. "Very healthy" they would all say. "How do you know it is good for you?", I'd ask. "Because it tastes good", they'd say.

The only time 'good' was always good for us was when we lived within Nature's limits. The instincts we inherit, like a love for rich food, evolved to drive healthy survival responses in the wild. Civilization has skewed things considerably by circumventing Nature's limits. It is ironic that we blame our original animal nature - "Don't be an animal!", we say - rather than the true cause - civilization.

Now, go enjoy that turkey and all the fixins!